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Flight test data gathered during a series of RNAV flight tests at the National Aviation Facilities Experimental Center (NAFEC) in Atlantic City, New Jersey, are presented. The report concentrates on the radio navigation sensor errors and the resulting errors in position determination that are inherent in area navigation (RNAV) operation in the terminal area. Statistical data as well as distributions of the errors are presented. One-standard deviations of 1.5 degrees for very high frequency omnidirectional radio range (VOR) and 0.094 nautical mile for distance measuring equipment (DME) were computed from the flight test data. These statistics represent combined ground and airborne sensor errors.

Flight test data gathered during a series of RNAV flight tests are presented. The report concentrates on the radio navigation sensor errors and the resulting errors in position determination that are inherent in area navigation (RNAV) operation in the terminal area. Statistical data, as well as distribuutions of the errors, are presented. Also included is a comparison of the Advisory Circular 90-45A tangent point table calculated from regression equations. One standard deviation of 1.4 nautical miles for very high frequency omnidirectional radio range (VOR) and 0.11 nautical mile for distance measuring equipment (DME) were computed from the flight test data. These statistics represent combined ground and airborne sensor errors.